I will be rebuilding the bottom end of my 2002 CR125 on Friday (going to ride on Saturday), something I have never done before. I have already split the cases and pulled the crank so that's not a problem. But since I don't have a service manual for it, I was wondering if I could somewhat rely on my 2005 CR250 manual for the reinstall? Also would this article mostly apply too? http://twostrokemotocross.com/2010/02/engine-build-hpp-valve-honda-cr250-part-1/ I'm not so much worried about the top end, just the cases.